• Core: Arm® 32-bit Cortex®-M4 CPU with FPU
(72 MHz max.), single-cycle multiplication and
HW division, DSP instruction
• Memories
– 32 to 64 Kbytes of Flash memory
– 16 Kbytes of SRAM on data bus
• CRC calculation unit
• Reset and power management
– VDD, VDDA voltage range: 2.0 to 3.6 V
– Power-on/Power down reset (POR/PDR)
– Programmable voltage detector (PVD)
– Low-power: Sleep, Stop, and Standby
– VBAT supply for RTC and backup registers
• Clock management
– 4 to 32 MHz crystal oscillator
– 32 kHz oscillator for RTC with calibration
– Internal 8 MHz RC with x 16 PLL option
– Internal 40 kHz oscillator
• Up to 51 fast I/O ports, all mappable on
external interrupt vectors, several 5 V-tolerant
• Interconnect matrix
• 7-channel DMA controller supporting timers,
ADCs, SPIs, I2Cs, USARTs and DAC
• 1 × ADC 0.20 μs (up to 15 channels) with
selectable resolution of 12/10/8/6 bits, 0 to
3.6 V conversion range, single
ended/differential mode, separate analog
supply from 2.0 to 3.6 V
• Temperature sensor
• 1 x 12-bit DAC channel with analog supply from
2.4 to 3.6 V
• Three fast rail-to-rail analog comparators with
analog supply from 2.0 to 3.6 V
• 1 x operational amplifier that can be used in
PGA mode, all terminal accessible with analog
supply from 2.4 to 3.6 V
